Headset telephone



FIG. 1 is a front elevational view of a headset telephone showing my new design;

FIG. 2 is a rear elevational view thereof;

FIGS. 3 and 4 are respectively left and right side elevational views thereof; and,

FIGS. 5 and 6 respectively top and bottom plan views thereof. 

The ornamental design for a headset telephone, as shown and described. 